49172555 has 4 divisors (see below), whose sum is σ = 59007072. Its totient is φ = 39338040.

The previous prime is 49172549. The next prime is 49172561. The reversal of 49172555 is 55527194.

It is a happy number.

49172555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (49172549) and next prime (49172561).

It is not a de Polignac number, because 49172555 - 2⁶ = 49172491 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4917251 + ... + 4917260.

It is an arithmetic number, because the mean of its divisors is an integer number (14751768).

Almost surely, 2^49172555 is an apocalyptic number.

49172555 is a deficient number, since it is larger than the sum of its proper divisors (9834517).

49172555 is an equidigital number, since it uses as much as digits as its factorization.

49172555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9834516.

The product of its digits is 63000, while the sum is 38.

The square root of 49172555 is about 7012.3145251764. The cubic root of 49172555 is about 366.3596130035.

The spelling of 49172555 in words is "forty-nine million, one hundred seventy-two thousand, five hundred fifty-five".